\centering
\begin{tabular}[t]{lcc>{\centering\arraybackslash}p{1.5in}c}
\toprule
\multicolumn{1}{c}{ } & \multicolumn{3}{c}{Amount discussed for each choice (Z)} & \multicolumn{1}{c}{\makecell[c]{Amount discussed overall\\in a group (Z)}} \\
\cmidrule(l{3pt}r{3pt}){2-4} \cmidrule(l{3pt}r{3pt}){5-5}
\multicolumn{1}{c}{ } & \multicolumn{1}{c}{\makecell[c]{3-person\\discussion only\\(Phases 1 + 2)}} & \multicolumn{1}{c}{\makecell[c]{2-person\\discussion only\\(Phase 2 only)}} & \multicolumn{1}{c}{\makecell[c]{2- \& 3-person\\discussions\\(Phase 2 only) }} & \multicolumn{1}{c}{\makecell[c]{2- \& 3-person\\discussions\\(Phase 2 only)}} \\
\cmidrule(l{3pt}r{3pt}){2-2} \cmidrule(l{3pt}r{3pt}){3-3} \cmidrule(l{3pt}r{3pt}){4-4} \cmidrule(l{3pt}r{3pt}){5-5}
  & (1) & (2) & (3) & (4)\\
\midrule
Choice includes a transgender worker (=1) & \num{0.104}*** & \num{0.049} & \num{0.051} & \\
 & (\num{0.037}) [\num{0.005}] & (\num{0.046}) [\num{0.288}] & (\num{0.034}) [\num{0.139}] & \\
3-person discussion &  &  & \num{0.237}*** & \num{0.565}***\\
 &  &  & (\num{0.078}) [\num{0.003}] & (\num{0.077}) [\num{<0.001}]\\
\midrule
Num. observations & \num{1184} & \num{732} & \num{1148} & \num{479}\\
Num. groups & \num{296} & \num{183} & \num{287} & \num{479}\\
Outcome mean: Choice doesn't include trans & \num{0.00} & \num{-0.69} & \num{-0.61} & \\
Outcome mean: 3-person discuss. & \num{0.05} &  & \num{-0.45} & \num{0.00}\\
Outcome mean: 2-person discuss. &  & \num{-0.67} & \num{-0.67} & \num{-0.57}\\
Controls & X & X & X & X\\
\bottomrule

\end{tabular}

